From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from pigeon.gentoo.org ([208.92.234.80] helo=lists.gentoo.org) by finch.gentoo.org with esmtp (Exim 4.60) (envelope-from ) id 1LqvZI-0003nD-4L for garchives@archives.gentoo.org; Mon, 06 Apr 2009 20:37:20 +0000 Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id D8460E068F; Mon, 6 Apr 2009 20:37:18 +0000 (UTC) Received: from mail-qy0-f108.google.com (mail-qy0-f108.google.com [209.85.221.108]) by pigeon.gentoo.org (Postfix) with ESMTP id AFD49E068F for ; Mon, 6 Apr 2009 20:37:18 +0000 (UTC) Received: by qyk6 with SMTP id 6so4102890qyk.32 for ; Mon, 06 Apr 2009 13:37:18 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:sender:received:in-reply-to :references:date:x-google-sender-auth:message-id:subject:from:to :content-type:content-transfer-encoding; bh=AhJFiuV2WWBBK+4mLxe/tNULHn4LwPJXTmZVpUwT4d0=; b=vlDnWQP5+BGfaPXW/JF7MteHPArP5dH40IblqenVFgXcG+R7TvEc4AXbhNtmNySN0x aqqS+7yIm6EH3UC1Xzhvez3YpVBIbQIFAmzkeT/GGTDtHuocrAQ+GkDe8A4weAzoNCk0 f9sJvO9BOl0jvF8KvL9l5Vz4SE34iAYwvQZTo= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:content-type :content-transfer-encoding; b=i6sBGO9Wg5NOxqkQERCCO+WKj6iGES5e8L62HqEJdbfxRFY680qCJm5pGlHCofxa/T u0/XwUQS2r4vJMEUZSgUmmk7oqdufwll7za0CUX+6bwkqtDeBIRrGIrUlrYjVa2wpKtV ewzjLm/fYsBLnMwRu3xi3wiBXWYSlRpDXm76Y= Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@lists.gentoo.org Reply-to: gentoo-user@lists.gentoo.org MIME-Version: 1.0 Sender: paul.hartman@gmail.com Received: by 10.220.76.3 with SMTP id a3mr4392970vck.119.1239050238261; Mon, 06 Apr 2009 13:37:18 -0700 (PDT) In-Reply-To: <20090406202840.GK6904@syscon4.inet> References: <1238747642.49d5c9fa80017@imp.free.fr> <20090406060221.GH6904@syscon4.inet> <20090406163556.GI6904@syscon4.inet> <20090406210741.1ef7d35e@zaphod.digimed.co.uk> <20090406202840.GK6904@syscon4.inet> Date: Mon, 6 Apr 2009 15:37:18 -0500 X-Google-Sender-Auth: 22e893e6e4c155bd Message-ID: <58965d8a0904061337l2a23966bp66c829ee5296c7e1@mail.gmail.com> Subject: Re: [gentoo-user] Re: GCC-4.3.2 From: Paul Hartman To: gentoo-user@lists.gentoo.org Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Archives-Salt: e71bd5bc-a2c9-4cb5-abce-7d4305c2f28b X-Archives-Hash: efdbf02825c41476df2de688e5466c11 On Mon, Apr 6, 2009 at 3:28 PM, Joseph wrote: > On 04/06/09 21:07, Neil Bothwick wrote: >> >> On Mon, 6 Apr 2009 10:35:56 -0600, Joseph wrote: >> >>> Well, according to gentoo recommendations it is not so: >>> http://en.gentoo-wiki.com/wiki/Safe_Cflags >> >> Information on gentoo-wiki.com is not a Gentoo recomendation. Look at >> docs.gentoo.org for those. >> >> >> -- >> Neil Bothwick > > If you have look for it more carefully you would have found similar > recommendation on the official gentoo pages: > http://www.gentoo.org/doc/en/distcc.xml > I think the above page qualify as an official doc. isn't it? > "...-march=native > > Starting with GCC 4.3.0, the compiler supports the -march=native switch > which turns on CPU autodetection and optimizations that are worth being > enabled on the processor the GCC is running at..." > > So reading it, it seems to me the "-march=native" is recommended as well. That looks like a description of what -march=native is, not a recommendation. The recommendation is in the following sentences when they warn NOT to use it when using distcc in certain configurations (same as the wiki page).